JPH0129524B2 - - Google Patents

Description

Detailed Description of the Invention "Industrial Application Field" The present invention relates to a flooded direct seeding machine equipped with a hopper containing a seed feed roll, a chute for guiding fall connected to the hopper, and a float for planting grooves. Regarding the ground leveling device.

``Prior Art'' Conventionally, as shown in Japanese Patent Publication No. 38-26912, there has been a technique in which a groove with an open rear end is provided at the rear of a float and seeds are dropped onto the rice field within the front end of the groove.

"Problems to be Solved by the Invention" In the above-mentioned prior art, the rear end open groove was formed with approximately the same width on the front end side and the rear end side, so water flowed into the groove due to the drainage action of the float. The mud that flows easily disturbs the field surface where the seeds fall, and since an embedded member is provided inside the groove and the open rear end of the groove is closed off by the embedded member, mud flowing into the groove from the bottom side of the float can be prevented. and water, as well as mud and water flowing down into the groove from the top side of the float.
The seeds are prevented from flowing out of the grooves by the embedding member, and excess mud and water remain inside the grooves, resulting in problems such as a tendency for seeds to drop and embed at uneven positions and depths.

``Means for Solving the Problems'' However, the present invention provides a central tail section approximately at the center of the rear part of the float that is to be landed on the rice field, and both side tail sections are provided symmetrically on both sides of the center tail section. A pair of left and right grooves with an open rear end are provided symmetrically between the grooves, and the rear end side width of the center tail and both tails is formed to be narrower than the front end side width, so that the rear end open side width of the groove is formed. It is characterized in that the width of the groove is wider than the width on the front end side, and the groove is formed in a shape that widens toward the end in plan view.

"Function" Therefore, since the distance between the side edges of the central tail and both tails that form the groove and the longitudinal center line of the groove becomes larger on the rear side than on the front end side, the lower surface of the central tail and both tails It is possible to prevent the field surface at the center line in the longitudinal direction of the trench from being disturbed by mud and water flowing into the trench from the sides, and mud and water flowing down into the trench from the upper surface side of the center tail and both tails, and The mud and water inside can be discharged more quickly than before from the rear open side of the shape that widens at the end, and the rear end width of the center tail and both tails are narrower than the width of the front end, so the end widens in plan view. A groove with an open rear end can be formed at the rear of the float without changing the external width, and a pair of left and right grooves of two grooves can be formed while maintaining the stability and leveling function of the float. It can be extremely simply and functionally arranged on a float, and can easily improve workability in fields where soil leveling and furrowing are required compared to conventional methods.

"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings. Figure 1 is a side view of a walking type flooded direct sowing machine for six rows, in which 1 is an engine, and 2 is the engine 1.
3 is a seeding drive case connected to the transmission case 4 via the transmission case 4; 5 is a front float that covers the lower surface of the engine 1; 6 is the transmission case 2; A pair of left and right paddy wheels are installed on both sides of the drive case 7 via a swing case 7, and 8 is a steering handle fixed to the drive case 3 via a square frame 9.

In addition, Fig. 2 is a side view of the main part, Fig. 3 is a rear view of the same, and Fig. 4 is a partial cross-sectional side view.
Numerals 0, 11, and 11 are seeding frames arranged side by side on the left and right via horizontal shafts 13 and 14 which are bendably connected by a bendable spring 12, and 15 is a seeding frame 10 fixed to the front surface of the central seeding frame 10. bracket 16
17 is a swinging fulcrum shaft which is attached to the square frame 9 so as to be rotatable only in the front and back, 17 is a running trajectory forming streak marker which is movably provided on the bracket 18 fixed to the outside of the left and right seeding frames 11, and 19 is a It is fixed to the lower ends of the seeding frames 10, 11, and includes a pair of groove-making protrusions 20, 21 and seeding grooves 22, 2.
Float, which is a ground leveling body formed by forming 3, 24,
Reference numeral 25 denotes a culturing soil plate fixed to the bottom surface of the float 19 and facing from the inside of the seeding grooves 22 and 23; and 26 and 27, the front end of the center float 19 is attached to the bottom surface of the transmission case 4 above. A swing link 28 for connecting and supporting the floats 19 is biased against the seeding frame 10 via an adjustment bolt 29 to lift the front end side of each float 19 and push down the rear end side around the fulcrum shaft 15. spring,
30 is a hopper for storing seeds fixed to the upper end side of the sowing frames 10, 11, and 31 is a bucket 34, 35 for discharging seeds for two rows, which is rotatably supported in the reservoir 32 of the hopper 30 via a rotating shaft 33. The seed feed rolls 36 are formed in parallel on the outer peripheral surface, and have their upper ends connected to the reservoir 32 via a partition plate 37, and their lower ends branched to face the front ends of the respective seeding grooves 22, 23. 38 is a manual rotation chute which is fixed to the protruding outer end of the rotating shaft 33; 39 is a feed-out roll installed between the drive case 3 and the sowing frames 10 and 11; A flexible wire that rotationally drives 31, 4
0 is a clutch lever that interrupts the driving force of the flexible wire 39, 41 is a main shutter that opens and closes the bottom of the hopper 30 via a shutter lever 42, and 43 is a lever 44 that adjusts the amount of seeds flowing down into the reservoir 32. The outflow control shutter 45 is a lid provided on the top surface of the hopper 30 so as to be openable and closable.

Furthermore, as shown in FIGS. 5 and 6, guide surfaces 48, 48 are provided to guide the falling rice seeds 47, 47 into the seeding grooves 46, 46 formed in the rice field by the groove forming projections 20, 21. The guide surfaces 48, 4 are provided on the circumferential side of the seeding grooves 22, 23, which face the fork-shaped lower end of the seeding chute 36 from approximately vertically above.
8, and the guide surfaces 48, 48 are sloped so that the lower ends thereof are wider on the ground side, and grooves 2 for seeding are formed.
The grounding sides of 2 and 23 are shaped to widen toward the end, which prevents mud from blowing out when grounded by the bottom of the float 19, drastically reduces mud from adhering to the guide surface 48, and prevents the seed rice from coming into contact with the guide surface 48. The lower end of the sowing chute 36 faces the inverted half-shaped upper surface opening above the sowing grooves 22 and 23 from above, and the rice seeds 47 from the chute 36 are transferred to the sowing grooves 22 and 23. .
8 prevents muddy water from jumping up, and also prevents the seed rice 47 from coming into contact with the guide surface 48.

In addition, as shown in FIG. 5, grooves 22 and 23 for sowing
The lengths of the central tail portion 49 and both side tail portions 50, 50 are made different, and both side tail portions 50, 50 are formed to be shorter by an appropriate distance (l). of,
Also, both side tail portions 5 are symmetrically disposed on both sides of the central tail portion 49.
0,50, a central tail portion 49 and both side tail portions 50,
A pair of left and right grooves 22, 23 with open rear ends are provided symmetrically between the grooves 50, and the rear end widths of the central tail portion 49 and both tail portions 50, 50 are formed to be narrower than the front end widths, The width of the rear end open side of the grooves 22, 23 is made wider than the width of the front end side.
2 and 23 are formed in a shape that widens toward the end in plan view.

This embodiment is configured as described above, and when seed rice 47 is directly sown in a flooded field after puddling, the germinated seed rice 47 is coated in advance with a water-soluble oxygen generating agent containing a mixture of lime peroxide and calcined gypsum. With,
Hopper 3 with main shutter 41 closed
The seed rice 47 is put in the 0 and moved to the field after puddling. After that, open the main shutter 41,
The regulating shutter 43 is opened and closed as appropriate to cause the seed rice 47 to flow down into the reservoir 32, and each float 19 is lowered onto the rice field and pulled by the paddy wheels 6, and at the same time,
Feeding roll 31 via flexible wire 39
The bucket 3 of the feed roll 31 is driven to rotate.
4 and 35 scoop up the rice seed 47 from the reservoir 32 and put it into the upper end of the sowing chute 36, and the seed rice 47 is scooped up from the fork-shaped lower end of the sowing chute 36 through the sowing grooves 22 and 23 by the protrusions 20 and 21. The seed rice 47 is dropped into the groove of the rice field formed by
25 to close the groove and cultivate soil.
The seed rice 47 falling from the chute 36 is guided by the inverted half-shaped upper surface openings of the sowing grooves 22 and 23 to fall into the rice field groove 46, and the seed rice 47 is
2, 23 Lower C-shaped lower opening guide surface 48
This prevents muddy water from jumping up toward the lower end of the chute 36, prevents mud from adhering and accumulating on the guide surface 48, and prevents the seed rice 47 from coming into contact with and adhering to the guide surface 48. It is.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a center tail section 49 approximately in the center of the rear part of the float 19 that is to be landed on a rice field, and also provides bilateral tail sections 50 and 50 symmetrically on both sides of the center tail section 49. , a pair of left and right grooves 22, 23 with open rear ends are provided symmetrically between the central tail portion 49 and both tail portions 50, 50, and the width on the rear end side of the central tail portion 49 and both tail portions 50, 50 is set to the width on the front end side. The width of the grooves 22, 23 is narrower than that of the grooves 22, 23, and the width of the grooves 22, 23 on the open side of the rear end is wider than the width of the front end of the grooves 22, 23. . Due to the mud and water flowing into the grooves 22 and 23 from the sides, and the mud and water flowing down into the grooves 22 and 23 from the upper surface sides of the center tail part 49 and both tail parts 50,
It is possible to prevent the field surface at the front-rear center line position of the grooves 22, 23 from being disturbed, and to drain mud and water inside the grooves 22, 23 more quickly than before from the open rear side of the grooves 22, 23. 49 and both tail portions 50 are formed to be narrower than the front end side, the grooves 22 and 23 are formed to have a wide end shape in a plan view and have an open rear end.
A pair of left and right grooves 2 of two grooves can be formed at the rear part of the float 19 without changing the external width, and the stability and leveling function of the float 19 are sufficiently maintained.
2 and 23 are made extremely simple and functionally float 1
9, and has advantages such as being able to easily improve workability in fields where soil leveling and furrowing are required compared to conventional methods.

[Brief explanation of drawings]

Fig. 1 is a side view of a submerged direct seeding machine showing an embodiment of the present invention, Fig. 2 is a side view of its main parts, Fig. 3 is a rear view of the same, Fig. 4 is a cross-sectional side view of the same, and Fig. 5 The figure is a partial plan view, and FIG. 6 is an explanatory cross-sectional view thereof. 19...Float, 22, 23...Groove, 49...
...Central tail, 50...Both tails.

Claims (1)

[Claims] 1. A center tail section 49 is provided approximately in the center of the rear part of the float 19 to be landed on the rice field, and both side tail sections 50, 50 are provided symmetrically on both sides of the center tail section 49, and the center tail section 4
A pair of left and right grooves 22, 23 with open rear ends are provided symmetrically between the grooves 9 and the tail portions 50, 50 on both sides,
The center tail portion 49 and both side tail portions 50, 50 are formed so that the width on the rear end side thereof is narrower than the width on the front end side, and the groove 2
2. A ground leveling device for a flooded direct sowing machine, characterized in that the width on the open side of the rear end of the grooves 2, 23 is wider than the width on the front end side, and the grooves 22, 23 are formed in a shape that widens toward the end in plan view.